Microstructures of Alloys Used in Medical Devices

Alpha Alloys

  • Microstructure of CP Ti, ASTM F 67, Grade 4 (UNS R50700) (longitudinal plane, specimen was annealed at 704 °C) prepared using the three-step method and etched with Kroll’s reagent to reveal the grain structure.
  • Microstructure of CP Ti, ASTM F 67, Grade 2 (UNS R50400; specimen was in the as-rolled condition) prepared using the three-step method and viewed with polarized light to reveal the grain structure. Note the mechanical twins in the grains (arrows).
  • Microstructure of CP Ti, ASTM F 67, Grade 2 (UNS R50400; specimen in the as-rolled condition) prepared using the three-step method, followed by a vibratory polish, and viewed with crossed polarized light to reveal the grain structure. Note the deformation twins (arrows).

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resourcesThe articles and presentations that can be down-loaded from this web site are based upon work done by GFV while employed at Bethlehem Steel (1967-1983), Carpenter Technology (1983-1996), Buehler Ltd. (1996-2009) and Struers (2009-Present) and from the authors consulting work for companies such as, Latrobe Steel, Scot Forge, etc., and from his litigation work. GFV's bylined articles appearing in various issues of the ASM Handbook series have been listed here courtesy of ASM International, Materials Park, Ohio.

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